On-board EEPROM Write

R2026b

Write data to on–board Arduino EEPROM

Since R2024a

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On-board EEPROM Write block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simulink Support Package for Arduino Hardware / Common

Description

Add-On Required: This feature requires the Simulink Support Package for Arduino Hardware add-on.

Use the On-board EEPROM Write block to write nonvolatile data to the on–board Arduino^® electrically erasable programmable read–only memory (EEPROM). Each memory position on the EEPROM can store one byte of data. The block compares the existing data on the Arduino on–board EEPROM and writes only if the data has changed.

This table lists the memory size and the accessibility address range of on–board EEPROM of these Arduino boards.

Arduino Board	Size of On–Board EEPROM	Accessible Address Range
Arduino Mega 2560 and Mega ADK	4096 bytes	0 to 4095
Arduino Uno	1024 bytes	0 to 1023
Arduino Leonardo	1024 bytes	0 to 1023
Arduino Micro	1024 bytes	0 to 1023
Arduino Nano 3.0	1024 bytes	0 to 1023
Arduino Nano R4, Uno R4 Wi-Fi®, Uno R4 Minima	8192 bytes	0 to 8191

Ports

Input

Data — Data to Arduino EEPROM

matrix

The block inputs a N-by-1 or 1-by-N matrix of data that is has written to the Arduino EEPROM.

Data Types: single | double | int8 | int16 | int32 | uint8 | uint16 | uint32

Write enable — Enable write operation on Arduino EEPROM

positive non–zero value

The block inputs a positive non–zero value that allows a writing operation on the on–board Arduino EEPROM.

Data Types: Boolean

Parameters

Start address — EEPROM starting address

1 (default) | positive integer

Enter the starting memory address of the on–board Arduino EEPROM from where the write operation must begin.

Note

The total size of the input data type must not exceed the maximum number of addressable on–board Arduino EEPROM memory locations from the starting address specified in this parameter. For example, for the Arduino Uno board and uint8 input data type, the starting address of the EEPROM must not exceed 1021.

Version History

Introduced in R2024a

R2026b: Support added for Arduino Nano R4 board

You can deploy model containing the On-board EEPROM Write to the Arduino Nano R4 board.